Gas-check for bunsen or similar burners.



No. 700,893. Paten'ed May27, |902; r. M. nooKs.

GAS CHECK FR BUNSEN 0R SIMILAR'BUHNERS..

(Application filed Dec. 11, 1901.)

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UNITED STATES y PATENT FFICE.

FRANK M. BROOKS, OF BROOKLYN, NEW YORK.

GAS-CHECK FOR BUNSEN OR SIMILAR BURNERS.

SPECIFICATION forming part of Letters Patent No. 700,893, dated May 27, 1902.

Application filed December 1l, 1901. Serial No. 85,457. (No model.)

To a/ZZ whom, t 711/07,/ concern:

Be it known that I, FRANK M. BROOKS, a citizen of the United States, and a resident in the borough of Brooklyn, city of New York,

county of Kings, State of New York, have in vented a new and useful Improvement in Gas- Ohecks for Bunsen or Similar Burners, of which the following is a specification, refer# ence being had to the accompanying drawings, in whieh- Figure l illustrates an elevation of the Bunsen tube. tional View. Fig. 3 illustrates an elevation of the cap or upper part of the gas-check. Fig. l illustrates an elevation of the bottom part of the 'gas-check. Fig. 5 illustrates a vertical sectional view of the gas-check in its position when there is substantially a full flow of the gas.

In burners of this class as heretofore constructed the checking of the gas has been accomplished in various Ways, all of them, so far as I am aware, more or less complicated and involving a greater or less amount of disorganization of the burner in order to effect the adjustment, and usually the immediate means for reducing or increasing the fiow has been the employment of a check having a hole in it of a greater or less diameter through which the gas passes to the point of combustion. Consequently :if the hole in the check or similar device be too big it is necessary to disorganize the apparatus and supply a new one having a smaller hole, and the same is true if the hole is too small, not permitting suiicient flow of gas, excepting that itis possible to bore out the hole to make it larger, which under ordinary circumstances is impracticable. Y

Under my present invention the flow can be exactly adjusted as preference or necessity requires Without disorganizing the burner in the least and in a most easy, quick, and ef-' fective manner.

The construction of the apparatus is as fol-v lows:

A is the burner-tube. holes therein.

C is the check, which threads into the bottom of the tube, as shown. It is interiorly B B are the airthreaded, as at D, for attachment to the ordinary gas bracket or jet.

Fig. 2 illustrates a vertical sec` E is a hollow stem or part which projects upwardly from the check O, and it is threaded exteriorly, as at F, for the reception of a hollow cap G, which is perforated, as at H, at its upper end and is provided with a milled ange G. The opening I through the stem E terminates in two 'lateral openings K K into the chamber within the cap G, and above these openings there is a conically-shaped terminal L on the stem E, which is adapted toliit and close the opening H in the cap G after the manner of the well-known needlevalve.

A special feature of the invention is the fact that the parts are so proportioned that when properly assembled, as shown in Figs. l and 2, the iiange G of the cap Gis located adjacent to the air-holes B, so that the end of a pencil or a pin or any other similar article or utensil may be inserted through the air-holes and by pressure against the milled ange turn the cap G, running it up or down, as occasion requires, thus regulating the flow of gas.

It will be obvious to those familiar with this art that modifications may be made in the details of construction of the parts without departing from the essentials of the invention. I therefore do not limit myself to the details shown.

Having described my invention, I claim- 1. In a Bunsen burner the combination of a burner-tube providedwith air-holes, a hollow check adapted to close the end below the air-holes and having anrupwardly-extending threaded and hollow stem provided with a needle-valve, a gas-regulating cap embodying a seat for the needle-valve threaded to the stem and a iiange on the cap, the flange being accessible from' the exterior through the air-holes inthe tube, whereby the supply of gas may be regulated without affectwhereby it may be actuated through them, and the supply of gas regulated Without affecting the supply of air.

3. In a Bunsen burner the combination of a burner-tube provided with air-holes, a hollow check adapted to close the end of the tube below the air-holes and provided with threads for attachment to a gas-fixture, an upwardlyextending threaded stem provided with passage-Ways for the gas and a needle-valve, a perforated gas -regulating cap threaded to the stem and adapted to inclose the gas-passages in it and provided with a seat for the needle-valve through which the gas escapes into the burner-tube, the parts being so pro I5 portioned and arranged that when assembled the cap is accessible and may be manipulated through the air-holes in the tube for cutting off the supply of gas without affecting the supply of air.

In testimony whereof I- have signed my name to this specification in the presence of two subscribing witnesses.

FRANK M. BROOKS.

l/Vitnesses PHILLIPS ABBOTT, WALTER H. CRITTENDEN. 

